"Super Meat Boy would have been on WiiWare if we could have had just a few more megabytes of space - you can only compress stuff so much before you have to start cutting out huge parts of your game. Unfortunately, at that point, it just isn't worth the time."

By comparison, the standard size of a 3DS game cartridge is 2GB (although Metal Gear Solid 3D packs a 4GB punch). Technically this means that most 3DS games could be made available via digital download, should Nintendo allow it.